package main

import (
	"fmt"
	"log"
)

func main() {
	s := fn("hello", "world", "welcome")
	log.Printf(s)
}

func fn(a, b, c string) string {
	return fmt.Sprintf(a, b, c)
}

func fi(ints []int) (s []string) {
	for _, i := range ints {
		s = append(s, fmt.Sprintf("my int %d", i))
	}
	return s
}
